问题是我们现有的模具都要改变，还有已开始做的1000个3LB的滚筒的翻译：Problem is we don't have a mold will all be changed, there is beginning to do 1000 3LB drum 什么意思？中文翻译英文，英文翻译中文，怎么说？

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Problem is we don't have a mold will all be changed, there is beginning to do 1000 3LB drum

The question is our existing mold all must change, but also has already 1000 3LB drums which starts to do

Problem is that our existing mold has to change, there are already beginning to do the roller LB 1000 3

Problem is we don't have a mold will all be changed, there is beginning to do 1000 3LB drum